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Hirotaka Nakashima

Biographic Data

ID3747116
NAMEHirotaka Nakashima
GIVEN NAMESHirotaka
FAMILY NAMENakashima
SIGNATURENAKASHIMA H
AFFILIATIONSJapan Sport Council
ORCID0000-0003-3631-6720
VERIFIEDYes
TOTAL WORKS8
TOTAL CITATIONS1
WORKS AS AUTHOR8
WORKS AS EDITOR0
FIRST PUBLICATION YEAR2023
LATEST PUBLICATION YEAR2026
H-INDEX1
  • Association of BMI ‐Adjusted Calf Circumference and Age‐Specific Cutoff Values With In‐Hospital Falls Among Older Adults

    Open Access•Shuzo Miyahara, Keisuke Maeda et al.•ARTICLE•Geriatrics and gerontology…•2026

  • Verifying Family Authenticity in End‐of‐Life Care

    Open Access•Chisato Fujisawa, Toshiki Mizuno et al.•ARTICLE•Geriatrics and gerontology…•2026

    In the terminal stage of illness, it is important to respect the patient's wishes, including those based on religious beliefs. However, in patients with advanced dementia, it can be difficult to confirm their wishes regarding end-of-life care. In such cases, healthcare professionals must often rely on family members or close acquaintances to infer the patient's previously expressed preferences. Nevertheless, if the family exploits the patient's c…

  • Nonlinear Associations Between Frailty and Medication Burden in Hospitalized Older Adults

    Open Access•Hiroyuki Umegaki, Hirotaka Nakashima et al.•ARTICLE•Geriatrics and gerontology…•2026

  • A High Geriatric Depression Scale Score on Admission to Hospital Predicts a Worse Clinical Frailty Scale Score After Discharge

    Open Access•Yosuke Yamada, Hirotaka Nakashima et al.•ARTICLE•Geriatrics and gerontology…•2026

  • Is knee extension strength a key factor in badminton-specific agility among elite players

    Open Access•Hirotaka Nakashima, Ryosuke Ando et al.•ARTICLE•Frontiers in Sports and Active…•2026

    Significant inverse correlations were found between knee extension torque normalized to body mass for the leg opposite the racket-holding hand and badminton-specific agility at both 60 °/s and 180 °/s (males at 60 °/s: r s = -.619; 180 °/s: r s = -.579; females at 60 °/s: r s = -.445; 180 °/s: r s = -.446). In contrast, only the same-side leg at 60 °/s showed a significant inverse correlation (males: r s = -.413; females: r s = -.490). Overall, t…

  • Analyzing angular momentum in the takeoff phase of medium-hill ski jumping

    Open Access•Yuta Funato, Hirotaka Nakashima et al.•ARTICLE•Frontiers in Sports and Active…•2025

    This study shows that the appropriate AM CG value at takeoff was approximately 0.0391 s -1 . The study findings are expected to contribute to coaching with objective indicators

  • Acceptable range of timing error at bat-ball impact in baseball depends on the bat swing path

    Open Access•Hirotaka Nakashima, Gen Horiuchi et al.•ARTICLE•Frontiers in Sports and Active…•2025•References: 1

    The average acceptable range of timing error was 9.36 ± 6.25 ms in time and 0.227 ± 0.163 m in distance. However, these ranges varied significantly (time: 2.48-30.40 ms; distance: 0.056-0.614 m) depending on the specific swing trajectory. Furthermore, our findings revealed that the acceptable range of timing error is not solely determined by a single swing characteristic but rather by the interplay of multiple factors, including the bat swing tra…

  • Estimating flight trajectories of breaking balls from four-seam fastballs

    Open Access•Arata Kimura, Hirotaka Nakashima et al.•ARTICLE•Frontiers in Sports and Active…•2023•Cited by: 1•References: 17

    It is widely acknowledged that understanding the physical mechanics of the flight trajectories of four-seam fastballs and breaking balls is crucial for players and coaches to enhance pitching performance. The characteristics of the flight trajectories of four-seam fastballs and breaking balls have been revealed; however, the relationship between them has not been examined. Here, we show the characteristics of the flight trajectory of breaking bal…

  • Estimating flight trajectories of breaking balls from four-seam fastballs

    Open Access•Arata Kimura, Hirotaka Nakashima et al.•ARTICLE•Frontiers in Sports and Active…•2023•Cited by: 1•References: 17

    It is widely acknowledged that understanding the physical mechanics of the flight trajectories of four-seam fastballs and breaking balls is crucial for players and coaches to enhance pitching performance. The characteristics of the flight trajectories of four-seam fastballs and breaking balls have been revealed; however, the relationship between them has not been examined. Here, we show the characteristics of the flight trajectory of breaking bal…

  • Estimating flight trajectories of breaking balls from four-seam fastballs

    Open Access•Arata Kimura, Hirotaka Nakashima et al.•ARTICLE•Frontiers in Sports and Active…•2023•Cited by: 1•References: 17

    It is widely acknowledged that understanding the physical mechanics of the flight trajectories of four-seam fastballs and breaking balls is crucial for players and coaches to enhance pitching performance. The characteristics of the flight trajectories of four-seam fastballs and breaking balls have been revealed; however, the relationship between them has not been examined. Here, we show the characteristics of the flight trajectory of breaking bal…

  • Analyzing angular momentum in the takeoff phase of medium-hill ski jumping

    Open Access•Yuta Funato, Hirotaka Nakashima et al.•ARTICLE•Frontiers in Sports and Active…•2025

    This study shows that the appropriate AM CG value at takeoff was approximately 0.0391 s -1 . The study findings are expected to contribute to coaching with objective indicators

  • Acceptable range of timing error at bat-ball impact in baseball depends on the bat swing path

    Open Access•Hirotaka Nakashima, Gen Horiuchi et al.•ARTICLE•Frontiers in Sports and Active…•2025•References: 1

    The average acceptable range of timing error was 9.36 ± 6.25 ms in time and 0.227 ± 0.163 m in distance. However, these ranges varied significantly (time: 2.48-30.40 ms; distance: 0.056-0.614 m) depending on the specific swing trajectory. Furthermore, our findings revealed that the acceptable range of timing error is not solely determined by a single swing characteristic but rather by the interplay of multiple factors, including the bat swing tra…

  • Association of BMI ‐Adjusted Calf Circumference and Age‐Specific Cutoff Values With In‐Hospital Falls Among Older Adults

    Open Access•Shuzo Miyahara, Keisuke Maeda et al.•ARTICLE•Geriatrics and gerontology…•2026

  • Verifying Family Authenticity in End‐of‐Life Care

    Open Access•Chisato Fujisawa, Toshiki Mizuno et al.•ARTICLE•Geriatrics and gerontology…•2026

    In the terminal stage of illness, it is important to respect the patient's wishes, including those based on religious beliefs. However, in patients with advanced dementia, it can be difficult to confirm their wishes regarding end-of-life care. In such cases, healthcare professionals must often rely on family members or close acquaintances to infer the patient's previously expressed preferences. Nevertheless, if the family exploits the patient's c…

  • Nonlinear Associations Between Frailty and Medication Burden in Hospitalized Older Adults

    Open Access•Hiroyuki Umegaki, Hirotaka Nakashima et al.•ARTICLE•Geriatrics and gerontology…•2026

  • A High Geriatric Depression Scale Score on Admission to Hospital Predicts a Worse Clinical Frailty Scale Score After Discharge

    Open Access•Yosuke Yamada, Hirotaka Nakashima et al.•ARTICLE•Geriatrics and gerontology…•2026

  • Is knee extension strength a key factor in badminton-specific agility among elite players

    Open Access•Hirotaka Nakashima, Ryosuke Ando et al.•ARTICLE•Frontiers in Sports and Active…•2026

    Significant inverse correlations were found between knee extension torque normalized to body mass for the leg opposite the racket-holding hand and badminton-specific agility at both 60 °/s and 180 °/s (males at 60 °/s: r s = -.619; 180 °/s: r s = -.579; females at 60 °/s: r s = -.445; 180 °/s: r s = -.446). In contrast, only the same-side leg at 60 °/s showed a significant inverse correlation (males: r s = -.413; females: r s = -.490). Overall, t…

Engineering (3 works) · Frailty in Older Adults (3 works) · Physics (3 works) · Sports Dynamics and Biomechanics (3 works) · Sports Performance and Training (3 works) · Aerospace Engineering (2 works) · Ball (mathematics (2 works) · Experimental and Theoretical Physics Studies (2 works) · Geometry (2 works) · Mathematics (2 works)

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